🛡️ CVE-2025-54566 — qemu

How this vulnerability can be exploited

This issue can be reached from an adjacent network, attack complexity is high, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity low, availability low.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L

• Attack vector: Adjacent network — the attacker has to sit on the same local or logical network.
• Attack complexity: High — the attacker first has to win a race, learn a secret or otherwise prepare the target.
• Privileges required: None — an unauthenticated stranger can try it.
• User interaction: None — nobody has to be tricked into anything.
• Scope: Unchanged — the damage stays inside the vulnerable component.
• Confidentiality impact: None.
• Integrity impact: Low — limited, and the attacker does not choose what is affected.
• Availability impact: Low — limited, and the attacker does not choose what is affected.

Weakness class

CVE-2025-54566 is classified as CWE-642: External Control of Critical State Data. The product stores security-critical state information about its users, or the product itself, in a location that is accessible to unauthorized actors.

Affected software

CVE-2025-54566 is recorded against 1 package.

• qemu (fixed in 10.0.3)

Timeline and source

Published on 25 July 2025 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

lore.kernel.org

Other advisories for this package

qemu has other advisories on record. If you are patching this one, these are worth checking on the same host:

• OESA-2026-3273 (8.0 High, published 7 Aug 2026)
• OESA-2026-3276 (8.0 High, published 7 Aug 2026)
• OESA-2026-3275 (8.0 High, published 7 Aug 2026)
• OESA-2026-3274 (8.0 High, published 7 Aug 2026)
• ECHO-3e75-4e47-1525 (published 27 Jul 2026)
• ECHO-28c6-b03a-e05a (published 27 Jul 2026)
• ECHO-3bd4-c46c-672f (published 27 Jul 2026)
• UBUNTU-CVE-2026-9238 (published 27 Jul 2026)

Same weakness in other software

These advisories are the same class of weakness (CWE-642: External Control of Critical State Data) in other software:

• CVE-2025-26787 (4.7 Medium, published 22 Dec 2025)
• CVE-2025-49090 (7.1 High, published 2 Oct 2025)
• GHSA-97f8-h76h-f297 (2.0 Low, published 28 Jul 2025)
• CVE-2024-8754 (8.0 High, published 14 Sep 2024)
• CVE-2024-22387 (6.8 Medium, published 11 Jul 2024)
• CVE-2022-32859 (5.3 Medium, published 1 Nov 2022)
• CVE-2022-22154 (6.8 Medium, published 19 Jan 2022)

CVE-2025-54566 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Affected Packages

References